An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server
Published Sep 10, 2018
7.5
HIGHCVSS 3.0
EPSS 6.32%
Description
An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
Affected products
-
- Version 3.4.11StatusaffectedConstraints-
- Version 4.0.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Open-Xchange | Pdns | n/a |
|
Configuration 1
- < 3.4.11
- ≥ 4.0.0 · < 4.0.2
Configuration 2
- 8.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.32% (0.06319) | 93.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.32% (0.06319) | 92.70th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00031) | 5.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.97% (0.00966) | 84.00th | v3 (v2023.03.01) |
| Jun 25, 2024 | 0.97% (0.00966) | 83.40th | v3 (v2023.03.01) |
| Jun 3, 2024 | 0.71% (0.00714) | 80.51th | v3 (v2023.03.01) |
| Feb 1, 2024 | 0.71% (0.00714) | 78.50th | v3 (v2023.03.01) |
| Sep 4, 2023 | 0.50% (0.00504) | 73.50th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.37% (0.00369) | 68.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00352) | 67.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/ x_refsource_CONFIRMVendor Advisory
- https://www.debian.org/security/2017/dsa-3764 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/ | x_refsource_CONFIRMVendor Advisory | |
| https://www.debian.org/security/2017/dsa-3764 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.